Using android DataBinding library how to pass parameters to binding events - android-databinding

Question

I followed examples from Android Developers Binding Events and implementing step-by-step. That working fine. But I want to send parameters from adapter to handlers, how can achieve this using data binding handlers

Answer 1

I got the answer.
In xml for onclick use lambda expression
layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<data>
<variable
name="movie"
type="embitel.com.databindingexample.helper.Movie" />
<variable
name="handler"
type="embitel.com.databindingexample.helper.MyHandlers" />
</data>
<android.support.v7.widget.CardView
android:id="#+id/cardview"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="4dp"
android:onClick="#{(view)->handler.onItemClicked(view,movie)}"
app:cardBackgroundColor="#android:color/white"
app:cardCornerRadius="4dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="8dp">
<ImageView
android:layout_width="match_parent"
android:layout_height="128dp"
android:scaleType="centerCrop"
app:error="#{#drawable/ic_launcher}"
app:imageUrl="#{movie.imageUrl}" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#{movie.title}" />
</LinearLayout>
</android.support.v7.widget.CardView>
then create handler class as,
public class MyHandlers {
public void onItemClicked(View v, Movie movie) {
Context context = v.getContext();
context.startActivity(DetailActivity.buildIntent(context, movie));
}
}
then you need to set handler where that xml is iflated as,
binding.setHandler(new MyHandlers());
you can also put handler method in any class. In that case you have to set that class name as handler.